Arlington Basin Boundary Adjustment

The Riverside-Arlington Subbasin (8-02.03) is partially exempt from the Sustainable Groundwater Management Act (SGMA) because of the 1969 Western-San Bernardino Judgement. The adjudicated portions of the basin are jointly managed by two court-appointed watermasters: one from Western Municipal Water District, the other from San Bernardino Valley Municipal Water District. Western is exploring a basin boundary request to specifically identify the non-adjudicated areas of the Riverside-Arlington Subbasin, the areas that are not exempt from SGMA.